PUT the thermostat back in. Without it, the water flows too fast to cool off.
The thermostat must be
in to restrict the flow.
Turn the defroster on; full heat full blower.
Does the temp go down?
If yes, replace the radiator.
If no, did the impeller come off the water pump shaft?
Never run car without thermostat! First thing I would do is put a new
Then I would buy a infrared thermometer and check the actual temperature at
the brass sensor on the thermostat housing. Check that reading against the
Alot of time, I find that the dash reading is off due to age.
Main engine fan on that year is a constant speed type. Later model year goes
faster according to temp but yield no difference in cooling. I tried.
Clean your radiator fins by backflushing it with air or water... from engine
bay outward to bumper.
I took the guts out of the thermostat to see if it would run cooler. Did
this on my 49 Chevy Fastback and 53 fords. They ran well for years. I also
did this on a 64 Tbird and it always ran well within the range of the
temperature back and forth to LA.
Yes I checked the temperature with a digital thermo to see if it was
really over 100C. And it was.
Do you think the radiator is clogged?
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